Fireproof building.



No. 704,77l. Patented July 15, I902. T BAILEY I HREPBUOF BUlLDING.

(Applicaltion filed June 22, 1901.

(No Model.)

0 FIG Z.

W 1; dj cZ FIGS.

WiTNESSES,

UNITED STATES P TENT OFFICE.

THOMAS BAILEY, OF NEW YORK, N. Y.

FlRl-ZP'ROOF' BUILDING.

' SPECIFICATION forming part of LettersjPatent No. 704,771, dated July15, 1902.

l V Application filed Juno 22, 1901. Serial No. 65,541. (No model.)

To all whom it may concern:

Be it known that'I, THOMAS BAILEY, a citizen of the United States ofAmerica,and a resident of New Yorkcity, county and State of New York,have invented certain new and useful Improvements in FireproofBuildings, of which the following is a specification.

My invention consists of improvements in fireproof constructions ofwalls, partitions, and other parts of buildings, as hereinafterdescribed, referenoe'being made to the accompanying drawings, in whichFigure 1 represents part of aside wall and part of a ceiling or root inperspective view with some of the parts in section. Fig. 2 represents anend view of an improved construction of corrugated metal sheetsspecially adapted for carrying out the invention,.and Fig. 3 representsin front and side views a coupling device of improved construction forconnecting transverse stiffening-bars to the insides of the corrugatedsheets.

- For walls and partitions consisting, essentially, of corrugated iron Imake dovetail corrugated sheets with ribs and grooves of the differentsides, differing in shape for adaptation to the requirements of thedifferent sides, as follows; 1

For the outside, which is to be galvanized or painted, I make theprotruding narrow ribs a intermediate of the wider grooves 13, said ribsbeing somewhat rounded in the protruding part and of any approvedheightrelatively to the plane of .the sheet, and the grooves I) beingflat in the bottom and broader than the greatest breadth of the ribs a,withnarrow opening slots 0 from the inside of the sheet into the groovesd, formed by producing .the ribs a. Thus the exterior of the sheetpresents the appearance of the usual board-andbatten construction, andthe inside is practically a plain surface, with undercut or dovetailgrooves at intervals, which may be plastered, and the plasterwillbeeftectually anchored in the grooves cl, the sheets being applied withthe corrugations ranging vertically, as shown in Fig. 1, and wherein 9represents the inside coating of plaster, such sheets have greatload-carrying strength, and when of sufficient length to reach betweenjoints in a building, particularly when reinforced with the plaster e,and will not under ordinary circumstances need other strengthening, butwhen excessive loads are to be carried the sheets may and preferablywill be reinforced by rods f, placed in grooves 01 and seated onsuitable foot-supports, with weightcarrying caps, as the bars or platesg, resting on the upper ends. When such reinforcingrods f are employed,the ribs a will have greater projection, and the grooves d will bedeeper to provide more space for the anchor elements of the plaster, andsuch ribs and grooves may be so extended as to permit flat bars to beused for excessive strength.

The sheets maybe reinforced transversely by bars g g to preventbuckling, said bars being placed against the fiat insides of the sheetsand hooked thereto by hooks, as 71., detachably secured in the grooves01 and projecting sufficiently to engage the bars. The hooks may ofcourse be secured in said grooves in any approved way; but the means ofsecuring them which I prefer consists of the disk-shaped T-headstructure 1' of the hook, adapted to be inserted edgewise through theslot 0 and being in a plane at right angles to the hook-prong, so thatbeing turned after the head has been entered the head will be locked inthe groove and the prong will lock the bar, and the parts will bepermanently secured in the locked positions by the plaster subsequentlyapplied.

It will be apparent that it is important for the proper fastening of thebars that the wide grooves be flat on the top against which the barsbear for stability until the plaster is applied, and it is obvious alsothat the structure will be more stable afterward.

When the sheets are-not of sufficient length to reach from onebearing-point to another,- they may be readily spliced by telescopingone within another, as represented atj, and

for securing the stiffening-bars whether the ribs a and grooves 01 areof rounded or angu lar form; but for eifectively securing the bars g itis essential that the grooves 19 be flat in the bottom, withcorresponding flat reverse sides of the ribs of said grooves to affordfair and substantial bearing for the bars. The acute angles at thejunctions of the narrow and wide ribs are essential for confining theretaining-hooks h i, so as to hold the bars against the wide ribswithout slackness. The rounded ribs are somewhat stronger than those ofangular form, and such form is otherwise preferable for outside ribswhen not to be coated with cement.

The retaining-hooks are alike applicable for securing thestiffening-bars to the angular as well as the rounded dovetail grooves,and I include the use of such books in both forms.

What I claim as my invention is 1. The improved dovetail corrugatedsheetmetal building-sheets, having exterior rounded ribs and interiorfiat ribs with contracted interior plaster-holding grooves and widerexterior grooves, the wide ribs being fiat on the top both outwardly andinwardly with acute angles at the junctions of the top and the sides,and the narrow grooves being rounded on the top both outwardly andinwardly and at the junctions with the sides.

2. The combination with the dovetail corrugated sheet-metalbuilding-sheets having exterior rounded ribs and interior flat ribs withcontracted interior plaster holding grooves and wider exterior grooves,the wide ribs being flat on the top both outwardly and inwardly withacute angles at the junctions of the topand the sides, and the narrowgrooves being rounded on the top both outwardly and inwardly and at thejunctions with the sides, of books for securing bars to the fiat ribs,each having a head insertible edgewise in the narrow interiorplaster-holding grooves and securable therein by the broader fiatwisedimensions set transversely to the groove in the adjustment of the hookafter being inserted, for engaging the bar.

3. The combination with the dovetail corrugated sheet-metalbuilding-sheets, having exterior rounded ribs, interior fiat ribs andcontracted interior plaster-holding grooves,

of reinforcing-rods inserted in the plaster rugated sheet-metalbuilding-sheets having exterior ribs, interior fiat ribs and contractedinterior plaster-retaining grooves, of the lateral stiiTening-bars andretaining-hooks for said bars, said hooks having disk heads insertibleedgewise in the plaster-retaining grooves, and securable thereincrosswise, and in the crosswise position securing the bars.

'7. The combination with the dovetail corrugated sheet-metalbuilding-sheets having exterior ribs and interior contractedplasterholding grooves, of lateral stiffening-bars and retaining-hooksfor securing said bars to the sheets, said hooks having a headinsertible edgewise in the groove, but interlocking when turnedsidewise, and a prong adapted to engage the bars when so turned, and theplaster fixing said bars and hooks in position.

Signed at New York city this 15th day of June, 1901.

THOMAS BAILEY.

Witnesses: O. SEDGwIcK,

A. P. THAYER.

